Make Vol 7 at printer

MAKE Vol 7, the "Backyard Biology" issue just went to the printers today (I'm editor-in-chief of MAKE). We have some fun biology projects, including three DNA-based experiments. Other projects include putting a video camera in a model rocket, an easy-to-make Stirling engine, and a home mushroom growing lab. If you order a subscription from the Make site, you are eligible for a discount rate of US$29.95. Link